source: trunk/hal/generic/hal_syscall.h @ 407

Last change on this file since 407 was 407, checked in by alain, 5 years ago

First implementation of fork/exec.

File size: 2.1 KB
Line 
1/*
2 * hal_kernel_syscall.h - Architecture specific kernel_side syscall handler API definition.
3 *
4 * Author      Alain Greiner (2016,2017)
5 *
6 * Copyright (c) UPMC Sorbonne Universites
7 *
8 * This file is part of ALMOS-MKH.
9 *
10 * ALMOS-MKH is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; version 2.0 of the License.
13 *
14 * ALMOS-MKH is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with ALMOS-MKH; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24#ifndef _HAL_KERNEL_SYSCALL_H_
25#define _HAL_KERNEL_SYSCALL_H_
26
27#include <hal_types.h>
28
29//////////////////////////////////////////////////////////////////////////////////////////
30//     Kernel-side syscall handler API
31//
32// This hal_do_syscall() function extract from the regs_tbl[] array the syscall index,
33// and the four syscall arguments. Then it calls the generic do_syscall() kernel function,
34// that call itself the relevant kernel function, depending on the syscall index.
35//
36// Any architecture specific implementation must implement this API.
37//////////////////////////////////////////////////////////////////////////////////////////
38
39/**** forward declaration  ****/
40
41struct thread_s;
42
43
44/*****************************************************************************************
45 * This function implements the ALMOS-MKH kernel_side syscall handler.
46 *****************************************************************************************
47 * @ this     : pointer on the calling thread.
48 * @ regs_tbl : array containing the core registers values, saved by hal_kentry.
49 ****************************************************************************************/
50void hal_do_syscall( struct thread_s * this,
51                     reg_t           * regs_tbl );
52
53
54#endif   // _HAL_KERNEL_SYSCALL_H_
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